Home / 10,654.79-15,989.47-5,464.31

Finding the Fourth Proportional to 10,654.79, 15,989.47 and 5,464.31

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Solution

The fourth proportional to 10,654.79, 15,989.47 and 5,464.31 is: 8,200.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,654.79 : 15,989.47 = 5,464.31 : x
  2. Step 2: Convert to fraction form
    10,654.79/15,989.47 = 5,464.31/x
  3. Step 3: Cross multiply
    10,654.79x = 15,989.47 × 5,464.31
  4. Step 4: Simplify right side
    10,654.79x = 87,371,327.21
  5. Step 5: Solve for x
    x = 87,371,327.21/10,654.79
  6. Step 6: Final answer
    x = 8,200.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.